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Food wrap base sheet with regenerated cellulose microfiber

a technology of regenerated cellulose and food wrap, which is applied in the field of paper-containing products, can solve the problems of aggravate processing difficulties and high cost of additives

Active Publication Date: 2010-03-18
GPCP IP HLDG LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]Embodiments of the disclosure may provide an exemplary base sheet for food wrap products including a pulp-derived papermaking fiber and a fibrillated regenerated cellulose microfiber having a CSF value of less than about 175 mL. Embodiments of the disclosure may also provide an exemplary method for making a food wrap paper product. The exemplary method includes forming a base sheet including a pulp-derived papermaking fiber and a regenerated cellulose microfiber, and treating the base sheet with a water or grease resistant agent.

Problems solved by technology

These additives are expensive and can aggravate processing difficulties when the paper is impregnated with a water-resistant agent and / or printed as is common, especially with wet-waxing papers.

Method used

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  • Food wrap base sheet with regenerated cellulose microfiber
  • Food wrap base sheet with regenerated cellulose microfiber
  • Food wrap base sheet with regenerated cellulose microfiber

Examples

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examples

[0103]The present disclosure can be more fully described according to the following non-limiting examples.

Hand Sheet Study #1

[0104]A hand sheet study was conducted with southern softwood and fibrillated lyocell fiber. FIG. 3 is a photomicrograph of stock lyocell fiber of 1.5 denier (e.g., 16.6 mg / 100 m) by 4 mm in length, which was fibrillated until the freeness was less than about 50 CSF. FIG. 4 shows a photomicrograph of 14 mesh refined regenerated cellulose, and FIG. 5 shows a photomicrograph of 200 mesh refined regenerated cellulose fiber. It will be appreciated from FIGS. 4 and 5, that the fibrillated fiber has a much lower coarseness than the stock fiber.

[0105]FIGS. 6-10 show photomicrographs of fibrillated lyocell material at increasing magnification, wherein the fibrillated lyocell material has been passed through the 200 mesh screen of a Bauer-McNett classifier. This material can be referred to as “fines.” In wood pulp, fines are mostly particulate rather than fibrous. The ...

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Abstract

A base sheet for food wrap products. The base sheet can include a pulp-derived papermaking fiber and a fibrillated regenerated cellulose microfiber having a CSF value of less than about 175 mL.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to U.S. Provisional Patent Application having Ser. No. 61 / 192,159, and filed on Sep. 16, 2008, the entirety of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]Embodiments of the present disclosure generally relate to paper-containing products and, in particular, to paper suitable for use as a base sheet. More particularly, embodiments of the present disclosure relate to base sheets adapted for use in the production of food wrap products.[0004]2. Description of the Related Art[0005]Paper for producing food-wrap products is well known in the art. Generally speaking, such products are manufactured similarly to tissue type products, except that they are not creped from a Yankee dryer. Instead, they are pulled from the dryer under tension, or may be can-dried on a flat paper machine. Such products include so-called dry-waxing sheets, wet waxing sheets, a...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D21H13/08
CPCD21H13/08D21H27/10Y10T428/2904Y10T428/2965Y10T428/24802
Inventor FIKE, GREGORY M.POUNDER, JOSEPH R.SUMNICHT, DANIEL W.
Owner GPCP IP HLDG LLC
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